Casting-mold.



Patented Apr. 8, I902.

No. 697,|I5.

E. n. TUCKER.

CASTING MOLD.

(Application filed Mar. 18, 1898.

2 Shaefs-Sheet (No Model.)

l IKE rm: NORRIS versus :0. aware UTHO. WASHINGTON. o. c

No. 697,I|5. Patented Apr. 8, I902.

E. D. TUCKER.

CASTING MOLD.

(Applicati m filed Mar. 18, 1898.)

2 Sheqts-Shaat 2.

(No Model.)

NlTFD STATES ATENT OFFICE.

EDlVIN D. TUCKER, OF NEW YORK, N. Y., ASSIGNOR, BY DIRECT AND MESNEASSIGNMENTS, TO ROBERT HOE AND CHARLES WV. CARPENTER, (COPART- NERSUNDER NAME OF R; HOE AND COMPANY, OF NEW YORK, N. Y.)

CASTING-MOLD.

SPECIFICATION formingpart of Letters Patent No. 697,115, dated April 8,1902.

Application filed March 18, 1898.

T 00% whom it may concern.-

Be it known that I, EDWIN D. TUCKER, a citizen of the United States,residing at New York, county of New York, and State of New York, haveinvented certain new and useful Improvements in Casting-Molds, fullydescribed and represented in the following specification and theaccompanying drawings, forming a part of the same.

My improvements relate to molds for easting stereotype-plates forprinting or other purposes, and has for its object to provide a devicewhich shall both clamp the cover and the bottom portion of the moldtogether and r 5 efiect the separation thereof, which is operated by asingle lever, thereby simplifying the construction usually employed andeconomizing time and labor.

In the accompanying drawings, Figure 1 is a top plan view showing thecover of the mold and the edges of the bottom portion of the mold withthe clamping and separating devices attached. Fig. 2 is a side elevationof Fig. 1, showing the mold-cover and bottom clamped together. Fig. 3 isa vertical section on the line 3 3 of Fig. 1, showing the parts in adiiferent position; and Fig. 4 is a vertical section on the 11116.44 ofFig. 1, showing the cover separated from the bottom by the operation ofthe separating device.

Referring to said drawings, the cover A of the mold is hinged in theordinary manner to the bottom portion B and is provided with the lugs a,which, when the mold is in position to receive the molten metal, restupon the edges of the bottom portion. The clamping-bar C reciprocatesunder U shaped guides D, attached to the cover of the mold. To theclamping-bar are bolted two rack-bars E, mounted so as to slide in thecover and gearing with pinions F, keyed upon shaft G, journaled to thecover and provided with a handle H at each end. To the shaft G is alsofixed a handle I and two eccentrics K, one at each end and placed so asto bear upon the edges of. the bottom portion of the mold. LugsL arebolted to the bottom portion on either side, under which the locking-baris received to lock the cover to the bottom.

Serial No. 674,356. (NomodelJ' hen the parts are in the position shownin Figs. 1 and 2, the rack-bars E are drawn to their extreme right-handposition, carrying the locking-bar C under the lugs L and locking thebottom and the cover together. In this position of the handle I theprotruding portions of the eccentrics K are away from the bottom portionof the mold, as shown in Fig. 2. In the position of the handleI (shownin Fig. 4) the rack-bars E are moved to their extreme left-hand position'and the lockingbar 0 is withdrawn from the lugs L. In the intermediateposition of the handle Ithat shown in Fig. 3-the locking-bar is also outof engagement with lugs L and the handle is held in this position by alug M, mounted upon a spring N, which takes into a notch 0, formed inthe shank of the handle I.

The inner end of the mold-cavity is closed by a semicircular orhead-gage strip P, having a handle Q at each end. This headgage ispivoted near each end at p to the bottom of the mold and when inposition rests at its center against the stop-pin R, set in the bottomportion of the mold. This strip 1? has at either end a notch S, each ofwhich notches is adapted to receive a nipple on the end of a side bar U,which bars close one side of the mold-space. The bars U at their outerends are provided with lugs V, which rest upon the top edges of thebottom portion of the mold. The bottom of the mold is mounted in theusual manner upon forked uprights X.

When the apparatus is to be used, the handle I is placed as shown inFigs. 1 and 2, the mold is tipped to a vertical position, and the moltenmetal poured in. WVhen the metal has cooled and hardened, the mold isreturned to a horizontal position and the handle I is pulled forward ahalf-revolution to the posisition shown in Fig. 4, thereby causing thecams K to bear upon the body portion of the mold and separate the coverfrom the casting, as shown in Fig. 4. The handle I is now swung to itsintermediate position-that shown in Fig. 3-and the cover swung back. Thecast plate can now be loosened from the body portion of the mold bypushing upon the handles Q, causing the head-gage P at its center tomove to the right of the'position shown in Fig. 4 and in so doingthrowing forward the cast plate and exposing the front edge for theoperator to grasp in lifting out.

The purpose of moving the handle I to the intermediate position beforeswinging back the cover is that if the handle were left in the positionshown in Fig. 4 the eccentrics would strike the bottom portion of themold when the cover was swung back after removing the cast plate. On theother hand, if the handle I were swung to the position it occupies inFig. 2 the locking-bar would strike against the tops of the lugs L whenthe cover was closed. Consequently it is desirable to provide for anintermediate position, as stated.

The lugs L are, as shown, preferably springmounted-that is, they arepressed upward by springs land have a slight amount of play upon thebottom portion of the mold, so as to permit the wear upon their undersurfaces and the upper surface of the locking-bar to be compensated forby screwing up the nuts which hold them to the mold.

What I claim is 1. In a stereotype-plate-casting box, the combinationwith the body and cover of looking devices comprising separate lockingmembers at each side of the box carried by one of said parts,cooperating locking means carried by the other part, said meansincluding devices which separately engage the separate looking members,means independent of the locking devices for separating the cover fromthe bottom portion when the parts of the looking devices are disengaged,and a single instrumentality for operating the separating means andcausing the disengagement of the locking devices, substantially asdescribed.

2. In a stereotype-plate-casting box, the combination with the body of acover pivoted thereto, locking devices comprising separate lockingmembers at each side of the box carried by one of said parts,cooperating locking means carried by the other part, said meansincluding devices which separately engage the separate locking members,means independent of the locking devices for separating the cover fromthe bottom portion when the parts of the locking devices are disengaged,and a single instrumentality for operating the separating means andcausing the disengagement of the locking devices, substantially asdescribed.

3. In a casting-box, the combination with the bottom portion,of a coverpivoted thereto, cooperating locking members between the cover and thebottom portion, one of said members having a reciprocating movement,releasing means for turning the cover slightly on its pivot to free itfrom the bottom portion after the cast has been made, and a singleinstrumentality for reciprocating the locking member and operating thereleasing means, substantially as described.

4. In a casting-box, the combination with the bottom portion, of a coverpivoted thereto,

cooperating locking members between the cover and the bottom portion,one of said members having a reciprocating movement, releasing means forturning the cover slightly on its pivot to free it from the bottomportion after the cast has been made, a shaft, and means whereby theoperation of the shaft reciprocates the locking member .and operates thereleasing means, substantially as described.

5. In a casting-box, the combination with the bottom portion, of a coverpivoted thereto, a locking-bar carried on the cover, lugs adj ustablymounted on the bottom portion whereby wear may be compensated for,separating devices whereby the cover is slightly lifted from the bottomportion, and a single instrumentality for operating both the locking-barand the separating devices, substan tially as described.

6. The combination of the bottom portion of a mold, of a cover pivotedthereto, locking bar 0, a shaft, means operated by the shaft for movingthe bar to and fro, and eccentrics K mounted upon the shaft, for turningthe cover slightly onits pivot and thus separating it from the bottomportion of the mold, whereby the two portions of the mold may be lockedor separated by rotation of a single shaft, sub stantially as described.

7. The combination of the bottom portion and cover of a mold, means forlocking them together, a shaft mounted upon the cover and adapted tooperate the locking means, means for separating the cover from thebottom, also operated by the shaft, and means for fixing the shaft in aposition intermediate between the position in which it causes the partsto be locked together and the position in which it causes them to beseparated, substantially as described.

8. The combination of the bottom portion of a stereotype-mold and thecover therefor pivoted together, with the locking-bar C, a shaft, meansoperated by the shaft to draw the locking-bar into its locking positionwhen rotated in one direction, eccentrics mounted upon said shaft andadapted to force the cover from the bottom when the shaft is rotated inanother direction,and means for holding the shaft in an intermediateposition, sub= stantially as described.

9. In a casting-box, the combination with the bottom portion of a coverpivoted thereto, cooperating locking members carried by the bottom andthe cover, a shaft, a rack-andpinion connection between one of thelocking members and the shaft, cams on the shaft for separating thecover from the bottom portion, by turning it slightly on its pivots, andmeans for operating the shaft, substantially as de scribed.

10. In a casting-box, the combination with the bottom portion,of a coverpivoted thereto, a sliding locking-bar carried by the cover, cooperatinglocking devices on the bottom portion, a shaft mounted in the cover, arackand-pinion connection between the bar and the shaft, cams on theshaft for separating the cover from the bottom portion by turning itslightly on its pivots, and means for rocking the shaft, substantiallyas described.

11. In a casting-box, the combination of a case, a core pivoted to saidcase and adapted to fit thereinto, means for lifting the core out of thecase, locking devices adapted to secure the core in the case, and meansoperated by the actuation of said lifting devices for unlocking the corefrom the case, substantially as described.

12. In a casting-box, the combination of a

